Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais são as menores perdas de Mortlake tendo menos de 970 contra?
 ###Tabelas: CREATE TABLE singles:_26__19_titles_7_runners-up (singles:_26__19_titles_7_runners-up_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Opponent in the final VARCHAR, Score in the final VARCHAR) CREATE TABLE quarter-finals:___1_vs._nashville_predators_8 (quarter-finals:___1_vs._nashville_predators_8_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Visitor VARCHAR, Score VARCHAR, Home VARCHAR, Decision VARCHAR, Attendance INT, Series VARCHAR) CREATE TABLE 1934_ladder (1934_ladder_id AUTO_INCREMENT PRIMARY KEY, Club VARCHAR, Wins INT, Losses INT, Draws INT, Against INT) CREATE TABLE fixtures_results (fixtures_results_id AUTO_INCREMENT PRIMARY KEY, Competition VARCHAR, Round VARCHAR, Opponent VARCHAR, Result VARCHAR, Score VARCHAR, Home/Away VARCHAR, Venue VARCHAR, Attendance VARCHAR, Date VARCHAR) CREATE TABLE by_year (by_year_id AUTO_INCREMENT PRIMARY KEY, Year INT, Winner (number of titles) VARCHAR, Runners-up VARCHAR, Top Team in Regular Season (points) VARCHAR, Top Scorer (points) VARCHAR, Winning Coach VARCHAR)  
SELECT MIN Losses FROM 1934_ladder WHERE Club = mortlake AND Against < 970